CN221913088U - An injection mold water nozzle die cutting mechanism - Google Patents

Abstract

The utility model discloses an injection mold water gate mold in-mold cutting mechanism, which relates to the technical field of injection molds. In view of the problem that the side gate in the prior art cannot be automatically disconnected, leaving residues, and needs to be manually trimmed, thereby affecting production efficiency and cost, the following scheme is proposed, including a mold body, a connecting pipe is inserted into the top end of the mold body, and a gate spray gun is inserted at the top of the connecting pipe. The utility model is close to the gate insert on one side of the product and sets a push rod. The push rod and the gate insert work together to produce a shear effect, so that the gate is evenly disconnected. The automatically disconnected side gate can be automatically disconnected during ejection without manual intervention, thereby improving the efficiency and production capacity of the mold. At the same time, the automatically disconnected side gate design can reduce the complexity of the operating process, reduce the work pressure of workers, and cooperate with the production of manipulators to achieve a fully automatic production method, thereby improving the overall work efficiency.

Description

An injection mold water nozzle die cutting mechanism

Technical Field

The utility model relates to the technical field of injection molds, in particular to a water gate in-mold cutting mechanism for an injection mold.

Background Art

In plastic mold design, side gate is a common type of gate, which is connected to the side of the cavity to introduce molten plastic into the mold. The design and optimization of side gate has an important impact on the efficiency of the mold and the quality of the finished product.

However, there are some problems in the existing gate design:

If the side gate cannot be automatically disconnected, residues will be left and need to be manually trimmed, which will affect production efficiency and cost. These problems affect product quality and production efficiency.

Utility Model Content

In view of the deficiencies of the prior art, the utility model provides an injection mold sprue mold in-mold cutting mechanism, which overcomes the deficiencies of the prior art and effectively solves the problem in the prior art that the side gate cannot be automatically disconnected, leaving residues and requiring manual trimming, thereby affecting production efficiency and cost.

In order to achieve the above purpose, the utility model adopts the following technical solutions:

A gate in-mold cutting mechanism for an injection mold comprises a mold body, a connecting pipe is inserted into one end of the top of the mold body, and a gate spray gun is inserted into the top of the connecting pipe, a nozzle end of the gate spray gun is connected to a gate insert, and a movable ejector rod is arranged on one side of the gate insert, and a molding cavity is arranged on one side of the ejector rod.

The external injection molding device sprays the injection material through the connecting pipe and the gate spray gun, and pours it into the molding cavity through the side gate. After the pouring is completed and the molded workpiece is formed, the ejector pin is pushed upward by the action of the external ejector device. During the ejection, the top of the ejector pin pushes the molded workpiece upward, and the shear effect is generated through the joint action of the ejector pin and the gate insert, so that the gate is evenly disconnected.

Preferably, a plug hole is opened at one end of the top of the mold body, and the connecting pipe is plugged and fixed at the bottom end in the plug hole.

The connecting pipe is installed and fixed through the provided plug hole.

Preferably, the top and bottom of the connecting pipe are both plugged and fixed with connecting ports, and the upper connecting port is plugged with the gate spray gun, and the lower connecting port is plugged with an external injection molding device.

The connecting pipe is connected with the gate spray gun and the external injection molding device through the connecting port.

Preferably, a side gate is provided at the top of the outer wall of one side of the gate insert, and the side gate is matched with the nozzle of the gate spray gun.

The nozzle of the gate spray gun is plugged into the side gate to fix the injection direction.

Preferably, the molding cavity is opened at the other end of the top of the mold body, and the molding cavity is adjacent to the gate insert.

The molded workpiece is formed by the molding cavity.

Preferably, a slide groove is provided at one end of the bottom of the molding cavity close to the ejector rod, and the slide groove is adapted to the ejector rod, a molding workpiece is cast in the molding cavity, and an external ejection device is connected to the bottom of the ejector rod.

When the ejector pin is pushed upward, the ejector pin and the gate insert work together to produce a shear effect, causing the gate to break evenly.

The beneficial effects of the utility model are:

By setting a push rod close to the gate insert on one side of the product, the push rod and the gate insert work together to produce a shear effect, so that the gate is evenly disconnected. The automatically disconnected side gate can be automatically disconnected during ejection without manual intervention, thereby improving the efficiency and production capacity of the mold. At the same time, the automatically disconnected side gate design can reduce the complexity of the operating process and reduce the work pressure of workers. In conjunction with robot production, fully automatic production can be achieved, thereby improving overall work efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a side cross-sectional schematic diagram of the overall working structure of a nozzle in-mold cutting mechanism of an injection mold proposed by the utility model;

FIG. 2 is a schematic diagram showing the complete separation of the overall working structure of the sprue in-mold cutting mechanism of an injection mold proposed by the present invention.

In the figure: 1. mold body; 2. plug hole; 3. connecting pipe; 4. connection port; 5. gate spray gun; 6. gate insert; 7. side gate; 8. ejector pin; 9. molding cavity; 10. molded workpiece.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

Example:

Referring to Fig. 1-2, an injection mold gate in-mold cutting mechanism includes a mold body 1, a connecting pipe 3 is plugged into one end of the top of the mold body 1, a plug hole 2 is opened at one end of the top of the mold body 1, the connecting pipe 3 is plugged and fixed to the bottom end in the plug hole 2, the connecting pipe 3 is installed and fixed through the provided plug hole 2, a gate spray gun 5 is plugged into the top of the connecting pipe 3, a connecting port 4 is plugged and fixed at the top and bottom of the connecting pipe 3, the upper connecting port 4 is plugged into the gate spray gun 5, the lower connecting port 4 is plugged into an external injection molding device, and the connecting pipe 3 is connected to the gate spray gun 5 and the external injection molding device through the connecting port 4;

One end of the nozzle of the gate spray gun 5 is connected to a gate insert 6, and a side gate 7 is provided on the top of the outer wall of one side of the gate insert 6, and the side gate 7 is matched with the nozzle of the gate spray gun 5. The nozzle of the gate spray gun 5 is plugged into the side gate 7 to fix the injection direction. A movable ejector 8 is provided on one side of the gate insert 6, and a molding cavity 9 is provided on one side of the ejector 8. The molding cavity 9 is opened at the other end of the top of the mold body 1, and the molding cavity 9 is adjacent to the gate insert 6. A molded workpiece 10 is formed by the molding cavity 9. A slide groove is provided at one end of the bottom of the molding cavity 9 close to the ejector 8, and the slide groove is matched with the ejector 8. A molded workpiece 10 is cast in the molding cavity 9, and an external lifting device is connected to the bottom of the ejector 8. When the ejector 8 is lifted upward, the ejector 8 and the gate insert 6 work together to produce a shear effect, so that the gate is evenly disconnected.

Working principle:

During operation, the external injection molding device sprays the injection material through the connecting pipe 3 and the gate spray gun 5, and pours it into the molding cavity 9 through the side gate 6. After the pouring is completed and the molded workpiece 10 is formed, the ejector pin 8 is pushed upward by the action of the external ejector device. During the ejection, the top end of the ejector pin 8 pushes the molded workpiece 10 upward, and the shear effect is generated through the joint action of the ejector pin 8 and the gate insert 6, so that the gate is evenly disconnected.

The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims (6)

1. The utility model provides an injection mold mouth of a river mould inscription mechanism, includes mould body (1), its characterized in that, peg graft in the top one end of mould body (1) have communicating pipe (3), and peg graft at the top of communicating pipe (3) have runner spray gun (5), the spout one end of runner spray gun (5) is connected with runner mold insert (6), and one side of runner mold insert (6) is provided with movable ejector pin (8), one side of ejector pin (8) is provided with shaping chamber (9).

2. The injection mold gate internal cutting mechanism according to claim 1, wherein an insertion hole (2) is formed at one end of the top of the mold body (1), and the communicating pipe (3) is inserted and fixed at the bottom end in the insertion hole (2).

3. The injection mold gate internal cutting mechanism according to claim 1, wherein the top and the bottom of the communicating pipe (3) are respectively fixedly connected with a connecting port (4) in an inserted manner, the upper connecting port (4) is connected with a gate spray gun (5) in an inserted manner, and the lower connecting port (4) is connected with an external injection molding device in an inserted manner.

4. The injection mold gate internal cutting mechanism according to claim 1, wherein a side gate (7) is provided at the top of one side outer wall of the gate insert (6), and the side gate (7) is adapted to the nozzle of the gate spray gun (5).

5. The injection mold gate internal cutting mechanism according to claim 1, wherein the molding cavity (9) is formed at the other end of the top of the mold body (1), and the molding cavity (9) is adjacent to the gate insert (6).

6. The injection mold gate inscribing mechanism of claim 1, wherein a chute is formed at one end of the molding cavity (9) close to the bottom in the ejector rod (8), the chute is matched with the ejector rod (8), a molding workpiece (10) is poured in the molding cavity (9), and an external ejection device is connected to the bottom of the ejector rod (8).